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TPS2350D Datasheet(PDF) 3 Page - Texas Instruments |
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TPS2350D Datasheet(HTML) 3 Page - Texas Instruments |
3 / 21 page TPS2350 SLUS574A − JULY 2003 − REVISED SEPTEMBER 2003 3 www.ti.com ELECTRICAL CHARACTERISTICS −VINA = −48 V, −VINB = 0 V, UV = 2.5 V, OV = 0.5 V, SENSE = 0 V, RAMP = 0 V, SOURCE = more negative of –VINA and –VINB, all outputs unloaded, TA = −40 _C to 85 _C (unless otherwise noted)†‡ Input Supply PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ICC1A Supply current −VINA = −48 V, −VINB = 0 V 1000 1500 ICC2A Supply current −VINA = −80 V, −VINB = 0 V 2000 A ICC1B Supply current −VINB = −48 V, −VINA = 0 V 1000 1500 µA ICC2B Supply current −VINB = −80 V, −VINA = 0 V 2000 VUVLO_I Internal UVLO threshold voltage To GAT pull up −11.8 −10 −8.0 V VHYST Internal UVLO hysteresis voltage 50 240 500 mV Overvoltage and Undervoltage Inputs (OV and UV) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT To GAT pull up, 25 _C 1.391 1.400 1.409 VTHUV UV threshold voltage, UV rising, to –VINA To GAT pull up, 0 to 70 _C 1.387 1.400 1.413 V VTHUV UV threshold voltage, UV rising, to –VINA To GAT pull up, −40 to 85 _C 1.384 1.400 1.419 V IHYSUV UV hysteresis UV = −45.5 V −11 −10 −9 A IILUV UV low−level input current UV = −47 V −1 1 µA VTHOV OV threshold voltage, OV rising, to −VINA To GAT pull up 1.376 1.400 1.426 V IHYSOV OV hysteresis OV = −45.5 V −11.1 −10 −8.6 A IILOV OV low−level input current OV = −47 V −1 1 µA Linear Curent Amplifier (LCA) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOH High level output, GAT−SOURCE SENSE = SOURCE 11 14 17 V ISINK_f GAT sink current in fault SENSE – SOURCE = 80 mV, GAT = −43 V, FLTTIME = 5 V 30 75 mA ISINK_l GAT sink current in linear mode SENSE – SOURCE = 80 mV, GAT = −43 V, FLTTIME = 2 V 5 10 mA IIN SENSE input current 0.0 V < SENSE – SOURCE < 0.2 V −1 1 µA VREF_K Reference clamp voltage, SENSE − SOURCE RAMP – SOURCE = 6 V 34 42 50 mV VIO Input offset voltage, SENSE − SOURCE RAMP – SOURCE = 0 V −7 9 mV Ramp Generator PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ISRC1 RAMP source current, slow turn-on rate RAMP − SOURCE = 0.25 V −800 −550 −300 nA ISRC2 RAMP source current, normal rate RAMP − SOURCE = 1 V and 3 V −11.3 −10 −8.5 µA VOL Low-level output voltage UV = SOURCE 5 mV AV Voltage gain, relative to SENSE 0 V < RAMP − SOURCE < 5 V 9.5 10 10.7 mV/V † All voltages are with respect to RTN unless otherwise stated. ‡ Currents are positive into and negative out of the specified terminal. |
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